Identification of Active Substances from Streptomyces Culture Fluids Using p53-Independent Expression of p21/WAF1/Cip1 Gene and Their Mode of Action
スポンサーリンク
概要
- 論文の詳細を見る
An assay system was constructured to identify chemicals that have a potential to induce p21/WAF1 gene, a target of the tumor suppressor p53 critical for negative growth regulation. Screeening of about 1300 culture fluids of Streptomyces resulted in identification of active substances which induced the p21 gene in a p53-independent manner; one was a mixture of four members of the actinomycin group, and the other was trichostatin A. Tarnscriptonal regulatory regions of p21 gene for induction by actinomycin D and trichostatin A were determined by transient expression of luciferase constructs in cells which are p53-deficient (Saos-2) or express a mutated form of p53 (TMK-1). The essential tarnscriptional elements for the response to these drugs localize within 210 bp of the 5'-upstream region of human p21 gene, and Sp1 elements were determined to be critical for the induction. DNA-binding activity of Sp1 was not increased in cells treated with these drugs, but kinase inhibitors such as staurosporin and wortmannin inhibited the induction.
- 公益社団法人日本薬学会の論文
- 1998-09-15
著者
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TAKEUCHI Tomio
Institute of Microbial Chemistry
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Kondo S
Institute Of Microbial Chemistry
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KUNIMOTO Setsuko
Institute of Microbial Chemistry
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NOSE Kiyoshi
Department of Microbiology, Showa University School of Pharmacy
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EGAWA Kiyoshi
Department of Microbiology, Showa University of Pharmaceutical Sciences
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Nose K
Department Of Microbiology Showa University Of Pharmaceutical Sciences
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Nose K
Showa Univ. Pharmaceutical Sci. Tokyo Jpn
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Nose Kiyoshi
Department Of Microbioilogy Showa University School Of Pharmaceutical Sciences
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KUNIMOTO Setsuko
Numazu Bio-Medical Research Institute, Microbial Chemistry Research Center
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NISHIGORI Hidefumi
Department of Microbiology, Showa University School of Parmaceutical Sciences
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TAKIZAWA Toshio
Teikyo University Institute of Medical Mycology
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Nose Kiyoshi
Department Of Microbiology Showa University Of Pharmaceutical Sciences
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Egawa K
Department Of Microbiology Showa University Of Pharmaceutical Sciences
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Egawa Kiyoshi
Department Of Microbiology Showa University Of Pharmaceutical Sciences
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Kunimoto S
Numazu Bio-medical Research Institute Microbial Chemistry Research Center
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Nishigori Hidefumi
Department Of Microbiology Showa University School Of Parmaceutical Sciences
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Takeuchi Tomio
Institute For Chemotherapy M.c.r.f.
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